偏振无关集成光学模反射镜的研制  

Study and Fabrication of Integrated Optical Polarization-independent Reflector

作　　者：谢海宴 胡鸿璋[1] 张胜甲 耿凡 

机构地区：[1]天津大学理学院应用物理系,天津300072 [2]航天机电总公司8358研究所,天津300192

出　　处：《中国激光》2003年第8期691-694,共4页Chinese Journal of Lasers

基　　金：国家自然科学基金 (编号 :1 0 0 84 0 0 1 )资助项目

摘　　要：根据双模干涉理论分析了集成光学反射镜的原理 ,并用光束传播法 (BPM)计算了反射镜的反射特性以及对波长变化的适应性 ,通过对反射镜的结构参数进行优化 ,设计了一种与偏振无关的反射镜 ,其反射比大于 2 0dB(99% )。实际制作了这种反射镜 ,实验测量表明 ,TE/TM模的反射比均在 1 8An integrated optical polarization-independent reflector on LiNbO3 using Ti-diffusion has been proposed according to the theory of two-mode interference. Its principle has been analyzed. With the beam propagation method (BPM), the reflecting characteristic and adaptability with the wavelength change of the reflector have been accurately calculated. By optimizing its configuration parameters, the reflecting ratio is more than 20 dB (99%). Some actual samples have been fabricated and the measured reflecting ratios of both TE/TM mode have reached more than 18.5 dB in the experiment.

关 键 词：应用光学 集成光学 反射镜 双模干涉 光束传播法 

分 类 号：TN256[电子电信—物理电子学]